In brief
This role provides technical expertise across IMS, 4G/5G Core, MCX, VoLTE, LTE and TETRA systems. The work involves supporting complex deployments from design to operations while ensuring all performance, testing and security requirements are met.
Best for
Engineers with extensive experience in 4G/5G Core, IMS, VoLTE and mission-critical voice technologies.
Worth knowing
Willingness to support on-call duties and travel to customer locations is required.
What you need
Required
4G/5G Core
Clearly required in the listing
IMS
Clearly required in the listing
VoLTE
Clearly required in the listing
Mission Critical Voice
Clearly required in the listing
LTE
Clearly required in the listing
TETRA
Clearly required in the listing
3GPP
Clearly required in the listing
IP networking
Clearly required in the listing
Wireshark
Clearly required in the listing
SIP
Clearly required in the listing
VMware
Clearly required in the listing
Preferred
No preferred skills or technologies were clearly stated.
Your day-to-day
Provide SME technical support
Clearly stated in the job description.
Lead testing activities
Clearly stated in the job description.
Manage test progress
Clearly stated in the job description.
Support system integrations
Clearly stated in the job description.
Develop technical documentation
Clearly stated in the job description.
Experience expected
Level
Senior level
Based on what the listing states
Years of experience
Not stated
No clear years requirement found
Evidence from the listing
Experience level
“Responsibilities of an MCX Senior Core Engineer • Provide SME support for defect triage, complex fault investigations and troubleshooting across MCX Core.”
What's on offer
Full job description (from employer)⌄
Position: MCX Senior Core Engineer Location: Reading and customer offices as required Salary: On Application Duration: Ongoing Hours: Monday–Friday, 9am–5:30pm Overview of an MCX Senior Core Engineer As an MCX Senior Core Engineer, you will provide technical expertise across IMS, 4G/5G Core, MCX, VoLTE, LTE and TETRA, supporting complex deployments from design through to operations. You’ll work closely with R&D, customers and partners to deliver secure, reliable mission-critical solutions while ensuring testing, performance and operational requirements are met. Responsibilities of an MCX Senior Core Engineer • Provide SME support for defect triage, complex fault investigations and troubleshooting across MCX Core. • Lead functional, performance and end-to-end testing, including software upgrades and regression testing on VNF/VMware Core solutions. • Manage test progress, technical reports, trouble tickets and risks, ensuring issues are resolved within agreed SLAs. • Support MCX Core integrations, providing technical analysis, logs and feedback to customers, partners and third parties. • Contribute to MCX Core Test Strategies, Test Plans, documentation and the training and development of other engineers. Key Competencies of an MCX Senior Core Engineer • Extensive experience across 4G/5G Core, IMS, VoLTE and Mission Critical Voice, Video and Data technologies. • Strong knowledge of LTE, TETRA, 3GPP, IP networking, routing protocols and end-to-end network troubleshooting. • Experience with Wireshark, SIP, RTP, RTCP, Diameter, IXIA, Jira and ServiceNow, alongside VMware-based Core deployments. • Excellent analytical, technical, communication and leadership skills, with an Engineering or equivalent technical degree/experience. • Awareness of NIST, OWASP, GCF and UK TSA requirements, with willingness to support on-call and travel to customer locations when required. Benefits: • Generous holiday entitlement, plus additional birthday leave and bank holidays. • Staff sales discount, Reward Plus shopping discount, and volunteering days. • Government pension auto-enrolment and pension contribution from 12 weeks. • Subsidized staff restaurant, onsite parking, and free shuttle bus service (from Weybridge & Woking Station) Due to the large volume of applications we receive for each position we will only be able to respond to applications received with the relevant skills. Should you not hear from us within a week, unfortunately on this occasion your application has been unsuccessful. March Recruitment is an equal opportunities employer and complies with all relevant UK legislation. Please note that by applying for this vacancy you accept March Recruitment’s Privacy Policy and GDPR Policy which can be found on our website and therefore give us consent to contact you. Consultant – Charlie Shepherd
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